반응 #459142

반응 방정식

aluminum

P-CARBOXYPHENYL-PHENYLPHOSPHINIC ACID

phenyldichlorophosphine

p-cyanophenyl-diazonium tetrafluoroborate

→

p-cyanophenyl-phenylchlorophosphine

수율 47.0%

반응 조건

후처리

1. 1
   기타PREPARED BY L
2. 2
   기타Quinn et al. with unsatisfactory yields (L

실험 절차

P-CARBOXYPHENYL-PHENYLPHOSPHINIC ACID IS ALREADY KNOWN AND HAS BEEN PREPARED BY L. D. Quinn et al. with unsatisfactory yields (L. D. Quinn et al., J. org. Chem. 27, 4120 (1962): ##STR2## In this process, the reaction product of phenyldichlorophosphine and p-cyanophenyl-diazonium-tetrafluoroborate has to be subjected to a reduction with aluminum in order to obtain the p-cyanophenyl-phenylchlorophosphine. The yield is 47 % of the theoretical yield. This process can be carried out only with difficulty on a large scale, and the formation of large amounts of fluorine containing waste secondary products creates the problem of the pollution-free destruction thereof.

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